The Domus CELL-9 is a 9W plug-and-play LED lamp module and driver set withfive switchable colour temperatures and a choice offour beam angles 15, 24, 36 or 60.

Its datasheet carries an IC-4 rating and because this is themodule, that rating travels with the lamp rather than with one particular frame.

An IC rating tells you whether ceiling insulation may touch the fitting. In aninsulated ceiling that is a compliance question rather than a preference: a fitting without one needs aphysical clearance maintained around it, which means someone has to hold the batts back and overthe life of a house, they often do not.

Almost nothing else in this catalogue states an IC rating at all.Tell us the frame you are pairing it with and we will confirm the rating for the assembly inwriting, because the frame is part of the answer too.

Five colour temperatures, including 2700K

Most switchable fittings jump from 3000K to neutral white. The 2700Kstep is a visible difference in a bedroom, and on a staged renovation it lets you match the colour of theold fittings in the rooms you have not reached yet.

The beam angle is a variant, not a setting

• Four part numbers 15, 24, 36 and 60.
• 15 a tight accent. Artwork, a single object, a very high ceiling.
• 24 a defined pool. Joinery, a bench, a display shelf.
• 36 the general-purpose choice on a standard ceiling.
• 60 a wide wash. General room lighting, fewer fittings.
• Because the module is replaceable, the beam is a reversible decision swap itlater without touching the ceiling. That is the whole argument for buying modules rather than sealeddownlights.

9W or 13W?

• 9W is the more common residential choice standard ceilings, hallways,bedrooms, general lighting.
• 13W suits higher ceilings and commercial spaces, or where fewer fittings arewanted.
• Both are 49.9mm and 56mm deep and take the same frames, so thewattage can be changed later by swapping the module alone.
• The DALI versions are deeper 68mm which is the dimension thatdecides a retrofit.

The cutout figure on its datasheet is not this product’s

The sheet’s cutout line reads L190mm x W100mm SLOTCELL-2-9W a rectangular two-light slot frame, not this round module.

• Do not cut to that figure. The module itself is 49.9mm,56mm deep.
• The cutout comes from the frame: a CELL-S1 or CELL-S2 takes7075mm; the CELL-D75 frame states 75mmand the CELL-D90 frame 90mm.
• Tell us the frame and we will confirm the cutout before anyone marks a ceiling.

What “plug and play module and driver set” means

• It is a lamp and its driver, not a complete fitting. The module clicks into a frame,and the frame goes in the ceiling.
• As a retrofit it replaces an MR16 halogen lamp and its transformer together pull both out, put the CELL lamp and driver in. It suits most MR16 downlight frames, depending on height.
• The module is the replaceable part. When it fails, or the beam or colour needs tochange, the frame and the ceiling stay untouched.

The rest of the specification

• 9W COB LED, CRI 80, dimmable,50,000hours, 200240V 5060Hz.
• IP44 from the underside of the downlight once installed into the ceiling protection from the room side, not a sealed fitting in the void.
• No lumen output is recorded for the 9W module. For reference, the13W module is recorded at roughly 1,0001,160lm depending on colour.Ask us for the 9W figures.

Where it works

• Retrofit into existing MR16 downlight frames check the height.
• New installations with a CELL frame S1, S2, D75 or D90.
• Insulated ceilings IC-4 per its datasheet; confirm the assembly with us.
• Commercial fit-outs where modules will be maintained rather than fittings replaced.
• Not a complete fitting the frame is separate.
• Do not cut to the datasheet’s cutout line; it belongs to a rectangular frame.

Specifying it

9W COB LED lamp module and driver set. Module49.956mm.Five switchable colour temperatures 2700 / 3000 / 4000 / 5000 / 5700K, bydip switch. Beam angle chosen at order: 15, 24, 36 or 60.CRI 80, dimmable, 50,000hrs,200240V 5060Hz. Black. IC-4 per its datasheet confirm the assembly with us if insulation contactmatters. IP44 from the underside once installed.

The frame is sold separately, and the cutout comes from it CELL-S1/S27075mm, CELL-D75 75mm, CELL-D90 90mm. The datasheet’s cutout line (“L190 x W100mm SLOTCELL-2”) belongs to a different,rectangular frame. Lumen output not recorded. Warranty 3 years.

Supplied and supported by Lights For You.

Questions

Can ceiling insulation touch it?

Its datasheet gives IC-4, an insulation-contact rating and because this is the module rather than a particular fitting, that rating travels with the lamp. It matters: a fitting without an IC rating needs a physical clearance kept around it, which means someone has to hold the batts back, and over the life of a house they often do not. Almost nothing else in this catalogue states an IC rating at all. Tell us the frame you are pairing it with and we will confirm the rating for the whole assembly in writing.

What size hole does it need?

That comes from the frame, not the module the module itself is only 49.9mm. A CELL-S1 or CELL-S2 frame takes 7075mm; the CELL-D75 frame states 75mm and the CELL-D90 frame 90mm. Do not use the figure on the datasheet: its cutout line reads “L190 x W100mm SLOTCELL-2”, which is a rectangular two-light slot frame and not this product.

Should I choose the 9 W or the 13 W?

9W is the more common residential choice standard ceilings, hallways, bedrooms, general lighting. 13W suits higher ceilings and commercial spaces, or where you want fewer fittings. Both modules are 49.9mm and 56mm deep and take the same frames, so you can change the wattage later by swapping the module alone.

Which beam angle should I choose?

36 is the general-purpose choice on a standard ceiling. 15 for a tight accent on artwork, a single object or a very high ceiling. 24 for a defined pool over joinery, a bench or a display shelf. 60 for a wide wash with fewer fittings. They are four separate part numbers, but because the module is replaceable it is a reversible decision you can swap it later without touching the ceiling.

What does the fifth colour temperature give me?

A 2700K setting at the warm end. Most switchable fittings in this catalogue jump from 3000K to neutral white, so a room wanting genuine incandescent warmth has had no option. On a staged renovation it has a second use: matching the colour of the old fittings in the rooms you have not reached yet.

Will it replace my existing halogen downlights?

In most cases that is what it is designed for. You remove the MR16 halogen lamp and its transformer together and put the CELL lamp and driver in their place. It suits most MR16 downlight frames, with height being the constraint to check. Note the DALI versions are 68mm deep rather than 56mm, which is exactly the dimension that decides a retrofit.

How bright is it?

No lumen output is recorded for the 9W module. For reference, the 13W module is recorded at roughly 1,000 to 1,160 lumens depending on the colour setting, so a 9W will be proportionately lower. Ask us for the real figures, particularly if the beam angle is narrow a 15 and a 60 version of the same wattage behave very differently.